cccc cccs cchs cchy ccoc ccss chch chcs chhs chks choc choh chok choo chos choy chsc chsh chy- chyc chyk ckch ckck ckco ckcs ckcy ckhs ckoc ckoo ckos ckoy cksh ckso coch cock coco coho cohs cok- coko coky cooh cook coos cosc cosh coso coss cosy coyo coys cscc csch csco cscs cshs csks csos csys cyc- cycc cycs cyy- cyyc hccc hcch hccs hchs hcsc hcso hcss hhhh hhhs hkcc hkcs hoch hock hocs hoho hoko hoks hoky hook hoos hosh hoss hoys hscc hshs hyo- k-os kccc kcck kccy kchh kchk kcho kchs kckc kckk kcko kcky kcoh kcos kcsc kcss kcsy kcyk kcys kcyy khcc khch khck khcs khhk khho khhs khkk khks khky khoc khok khoy khss khys khyy kkch kkck kkco kkcs kkcy kkhh kkhk kkkk kkoh kkoo kkoy kkss kkyc kkys kkyy koch kock kocs kohh koho kohs kokc kokh kokk koko koks koky kooc kook kooo koos kos- kosc kosh koso koss kosy koyo koyy ksch ksck ksco kscs kscy kshk ksho kshs kskk ksko ksks ksky ksoc ksok ksoo ksos ksso ksss ksyc ksyy kycc kyck kycs kykc kykk kyks kyky kyok kyoo kyos kyoy kysc kysk kyyk kyyo kyys kyyy occc ochs ocks ocos ocys ohcc ohho ohhs ohoh ohok ohos ohso ohss ohyo okko okok okso okyo ooho oohs ooky oooh oooo ooos oscc osco oshc osho oshs osoo osos osso ossy oych oyss s-os sccc sccs sccy sch- schh scho schs sck- scoh scok scoo scsc scsh scso shcc shhh shhs shok shoo shos shsc skhs skss sky- skys skyy soch sock soco socs socy sohh soho sohs sokk soko sook soos sooy sosh soso soss soyo soys sscc sscs sshs ssoc sssc sssh ssss sych syck syco syso syss syyk yccc ycch ykko yksc yoch yock yoho yoko yoks yoky yook yosh yoso yoyo ysco yssh yyyy